This has always bothered me...
"You lack the skill to recover all materials from this item"
like it be changed to
"You lack the level to recover all materials from this item"
You can have your crafting skills at 50 with 10/10 materials and 3/3 extractions and still get this message if the item being deconstructed is a much higher level than with the character its being deconstructed as it isn't skill dependent rather being under the required level to extract materials.